Compact disc holder and its support base

ABSTRACT

A compact disc which has a high serviceability and an excellent economy and saves the installation space with the usability of a wasteful space by the capability to store a compact disc with a simple structure. A compact disc holder ( 21 ) for mounting a compact disc ( 5 ) by magnetic attraction in an arbitrary place of a ferromagnetic article (S 2 ) can store compact discs by coupling them with a magnetic force. This compact disc holder can be constituted of two magnetic materials ( 2, 22 ), besides one of which can made from a ferromagnetic material, and can be constituted of only one member. This compact disc holder can store magnet member inside the housing cover. A support base can be provided to prevent a magnetic flux external leakage from the compact disc holder.

BACKGROUND OF THE INVENTION

The present invention relates to a compact disc holder and its supportbase that make a better capability to store a compact disc.

Conventionally, a compact disc container is suggested which is containedplural compact discs to watch easy. For example, Japanese laid-openutility model publication number 5-71191 discloses a structure ofstoring cases that connect plural by connection of projection, in whichstores pivot able arm on which puts the compact disc. In addition,Japanese utility model publication number 6-43028 discloses a structureof compact disc holders that are connected the plural number of byconnecting material which puts the compact disc on it.

However, the disclosed structure in laid-open utility model publicationnumber 5-71191 is hard to look for a specific thing because compactdiscs are stood in line at short distance. And, the disclosed structurein utility model publication number 6-43028 is inconvenience forced touseless operation to open the whole. Furthermore, the disclosed compactdisc holder in these technologies, because of necessity of members ofmaterials that put on a compact disc every one piece or of a containingcase, must become a large scale container to receive them, and a largeinstallation space is necessary, and there is the inconvenience that acost becomes a large amount of.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a compact discholder that has a simple structure and a high serviceability and savesthe installation space and has an excellent economy.

Initially, a compact disc holder of the present invention comprising aholding part which is made from magnet member which inserts through acentral hole of a compact disc directly or indirectly with cover, and aside wall member which supports a compact disc side, and the side wallmember constitutes magnetic attraction ability to adsorb to aferromagnetic article by central part of the outside of the backside ofan aspect to face with a compact disc in this side wall member, andthere is characteristic by letting the tip face of said holding partadsorbs to a ferromagnetic article by magnetic attraction and holds acompact disc. According to this constitution, the compact disc holderhas very simple structure to be able to hold a compact disc even ifthere is ferromagnetic material.

A compact disc holder of the second embodiment of the present inventioneach said holding part and said side wall member which covers one sidecentral part in a compact disc are formed to one body, and a top part ofthe holding part and a outside face of said side wall member are madefrom magnet member to a different magnetic pole. According to thisconstitution, the compact disc holder can use by existing of otherferromagnetic material by magnetic attraction to outside surface of thesidewall member.

A compact disc holder of the third embodiment of the present invention acompact disc holder has a wall member of the ferromagnetic material,which covered the central part of other side of compact disc. Accordingto this constitution, the compact disc holder can hold the compact discby the central part side of it in the state that overturned between amagnet member and ferromagnetic member.

A compact disc holder of the fourth embodiment of the present inventionsaid wall member is formed from a magnet and said holding part is in thedifferent magnetic pole from the attraction side and the other above tipface. This constitution can hold the central part side of a compact discin the state that overturned between two magnet members. Moreover, bothof the compact disc holder that is shown in said third and the fourthdevelopment art, that can mount a compact disc by magnetic attraction insuccession a lot. Therefore the compact disc holder can adsorb at anarbitrary place of ferromagnetic material by magnetic force without aparticular storing container in this state and can minimize installationspace.

A compact disc holder of the fifth embodiment of the present inventionsaid wall member is formed from magnet member of same material as saidcompact disc holder of the second embodiment. This compact disc holderconstitutes of only one part for a compact disc, so it is easy to workfor mounting, and an economic advantage occurs.

A compact disc holder of the sixth embodiment of the present invention,the outside of said side wall member or the outside of said wall memberhas formed to a shape of about arc curve and is to be able to rotate atleast when adsorbs to flat surface of ferromagnetic material. By thisconstitution, it is easy to look for a desired compact disc, becausethey are free to open between plural compact discs each other, and workcharacteristics are very good because they automatically return to anoriginal state if remove power to open.

A compact disc holder of the seventh embodiment of the presentinvention, said compact disc holder comprises said side wall member isformed from housing cover that can store a compact disc, and saidholding part is made from magnet member that is attached to a center ofthe housing cover, and adsorbs to ferromagnetic material include thecover. This constitution can prevent a compact disc from dust. And, itcan simplify structure because it constitutes to install said magnetmember in the center of a housing cover.

A compact disc holder of the eighth embodiment of the present invention,comprises said housing cover that store a compact disc and said magneticmember that is connected by coupling material, and adsorb toferromagnetic article by magnetic attraction force of said holding partthrough said housing cover and said coupling material. It can increasethe degree of freedom of a search more, if hold a compact disc throughthe housing cover and the coupling material by adsorption of themagnetic member by magnetic attraction.

A compact disc holder of the ninth embodiment of the present inventionsaid housing cover is formed from a soft transparent material. By thisconstitution, the compact disc holder can see a display of a compactdisc directly.

As for this invention, because of using a magnet member, when put theplural compact disc holders 1 that are connected (cf. FIG. 29) and whenmount the compact disc holders that connected the plural number bymagnetic attraction in a ferromagnetic article (cf. FIG. 30), flux goesfrom a north magnetic pole to a south magnetic pole as shown in a dashedline in FIGS. 29 and 30, and magnetic flux external leakage occurs. Aplace is thought where flux leakage influences, for example, in a case acompact disc holder is installed in a personal computer neighborhoodwhere one operates a personal computer inputs data from a compact disc,a floppy disc is necessary considered thing which be hard to receive amagnetic obstacle even if it touches or approaches work desks in work tocopy data in a floppy disc.

A compact disc holder of the tenth embodiment of the present invention,wherein either one among said compact disc holder through from saidsecond embodiment to the ninth embodiment, subsidiary magnet eitheradsorb to said compact disc holder or put among plural said compact discholders.

Putting a magnet in series on magnetized direction increase ofattraction force of a magnet grows big to some thickness ischaracteristic. Using the characteristic, and the compact disc holderreduces possibility of a magnetic obstacle by a magnet thatcomparatively has weak magnetic force. Particularly, to assistattraction force in case of a little number of the connections, as showin FIG. 32, put subsidiary magnet 139 among ferromagnetic article S8 andthe compact disc holder which are adsorptive substance and fixed.Furthermore, when use the compact disc holder in the state that does notadsorb it adsorptive substance, by adsorbing subsidiary magnet 139 tothe compact disc holder 1 can increase attraction force of the compactdisc holder.

A compact disc holder of the eleventh embodiment of the presentinvention, said magnet member is made from ferrite-bond magnet ofcomparatively weak magnetic force than a magnet of the other kind. Bythis constitution, the compact disc holder reduces possibility of amagnetic obstacle to a floppy disc and makes easy to form magnetic fieldeven if complicated shape.

A support base of said compact disc holder of the twelfth embodiment ofthe present invention, comprises ferromagnetic material, and which setssaid compact disc holder which is comprising the magnet member that isforming a face shape magnet that has one face at the north magnetic poleand on opposite side at the south magnetic pole by magnetic attractionto inside its, and adsorbs ferromagnetic connecting material between thelast end of compact disc holders and bottom of the support base andforms a magnetic closed circuit, and prevents the flux external leakage.

The support base of the present invention uses support member 140 thatis made from ferromagnetic article sets the compact disc holders 1 thatis holding a compact disc 5 to it by the magnetic attraction force, asshown in FIG. 31. The support member 140 has magnet member that is eachside magnetized in thickness direction (one side has magnetic northpole/the opposite side has magnetic south poles in a thicknessdirection), the magnet member sets the compact disc holder 1 that isholding compact disc to the inside of this support member 140 bymagnetic attraction. Furthermore, the support member 140 adheres acoupling plate 142 that is made from a ferromagnetic material between alast part of the compact disc holder 1 and a support member bottom 141.This constitution forms a magnetic closed circuit and prevents magneticflux to leak out to the outside and can apply it when uses subsidiarymagnet 139 for assist attraction force as shown in FIG. 33.

A thirteenth embodiment of the present invention, said support base hassaid magnet member that is made from each side multi poles magnetized inthickness direction, and the support base sets the compact disc holderwith the magnet member to the inside of the support member by magneticattraction, and adheres the magnetic coupling plate to the most rearcompact disc holder by the magnetic attraction, and formed a magneticclosed circuit, and prevented external leakage of magnetic flux.

The support base of the present invention uses support member 140 thatis made from a ferromagnetic material that adheres compact disc holders1 to its inside by the magnetic attraction force that is holding compactdisc 5 as shown in FIG. 36. The support member 140 has magnet memberinside of it, the magnet member is formed to face multi poles magnetizedtype that is magnetized to vertical direction (one side has a number ofmagnetic poles/other one side has a number of magnetic poles in athickness direction). Furthermore, a coupling plate 142 made fromferromagnetic article adsorbs between last part of the compact discholders 1 and forms a magnetic closed circuit by this, and prevents amagnetic flux external leakage.

As magnet member to use this invention are, for example, permanentmagnet like ferrite magnet such as strontium ferrite, barium ferrite,and rare earths magnet such as neodymium-iron-boron, samarium-cobalt,samarium-iron-nitrogen, manganese-aluminum magnet and these bond magnets(a plastic magnet, a rubber magnet), and etc. Especially, because bondmagnet is comparatively weak magnetic force, possibility to wake up amagnetic obstacle to floppy discs is low, and, as for the ferrite bondmagnet is desirable, because there is a good point to be able to besuperior to molding characteristics and it is an oxide form and coerciveforce is big and stable and can be superior to economy.

As the examples of the magnet pattern for a magnet member to be use inthe present invention, each side magnetized in thickness direction (oneside (b) has north magnetic pole/other one side (c) has south magneticpoles in a thickness direction), as shown in FIG. 39, and each sidemulti poles magnetized in thickness direction as shown in FIG. 37 and inFIG. 38 (cf. (b) (c) of the state that of two magnetic poles or fourmagnetic poles on each face of a thickness direction).

An each side magnetized in thickness direction article is good incentripetal tendency attraction characteristics when match the centerand in turn characteristics when turn compact disc holder. Furthermore,an attraction force fall by coherence characteristics fall of attractionside does not occur is advantageous if formed curve to a outside face ofa side wall or a wall member of compact disc holder, otherwise it ispossible to direct and magnetize at same time in a magnetic field whenmolds a bond magnet of anisotropy in a magnetic field is other than afew advantages. But there are the weak points that attraction forcecompares with each side multi poles magnetized in thickness directionarticle is weak, and external leakage of magnetic flux extends to fardistance.

An each side multi poles magnetized in thickness direction articlebecause distance of a south magnet pole is near to a north magnet pole,a magnetic flux external leakage does not extend far, and, as for,coherence attraction is big, and centripetal tendency characteristics,turn characteristics are good, but it is inferior in attraction of curveside, and, in addition, as for magnetization, others to do after moldingare difficult.

Therefore, about a magnetic pattern, it should be decide by the field ofuse compact disc holder.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1(a) is a perspective view showing a compact disc holder accordingto an embodiment of the present invention.

FIG. 1(b) is section taken along the line B-B of FIG. 1(a).

FIG. 2(a) is a perspective view showing a using method of a compact discholder according to the first embodiment of the present invention, FIG.2 (b) is section taken along the line B-B of FIG. 2(a).

FIG. 3 (a), FIG. 3(b), FIG. 3(c) are views to explain the compact discholder according to the second embodiment of the present invention, FIG.3(a) is a perspective view showing a procedure of installation, FIG.3(b) is section taken along the line C-C of FIG. 3(a), FIG. 3(c) isfront elevation when mount compact discs in the state that areconnecting to a ferromagnetic article.

FIG. 4 is a front elevation showing an opening state of the compactdiscs under connecting in the second embodiment of the presentinvention.

FIG. 5 is a front elevation showing a mounting the compact disc of aconnection state in the second embodiment of the present invention.

FIG. 6(a), FIG. 6(b), FIG. 6(c) are views to explain the compact discholder according to the third embodiment of the present invention, FIG.6(a) is a front elevation of the compact disc, FIG. 6(b) is frontelevation to explain a holding state of a the compact disc, FIG. 6(c) isfront elevation when mount the compact discs that are connecting pluralnumbers to a ferromagnetic article.

FIG. 7(a), FIG. 7(b), FIG. 7(c) are views to explain a transformation ofthe compact disc holder according to the third embodiment of the presentinvention, FIG. 7(a) is a front elevation of the compact disc holder,FIG. 7(b) is a front elevation of the compact disc holder that areconnecting mount to a ferromagnetic article.

FIG. 8 is a cross sectional view of the compact disc holder of anothertransformation of the third embodiment of the present invention.

FIG. 9 is a cross sectional view of a further another transformation ofthe compact disc holder of the third embodiment of the presentinvention.

FIG. 10(a), FIG. 10(b) are drawings to explain the compact disc holderaccording to another embodiment of the transformation of the second andthe third embodiment of the present invention, FIG. 10(a) is a crosssectional view applied to the second embodiment, FIG. 10(b) is a crosssectional view applied to the transformation of the third embodiment ofthe present invention.

FIG. 11 is a front elevation to explain using a protecting cover to thesecond embodiment of the present invention.

FIG. 12(a), FIG. 12(b), FIG. 12(c) are perspective views to explain thefourth embodiment of the present invention, FIG. 12(a) is a perspectiveview showing a compact disc, FIG. 12(b) is a perspective view showing acompact disc holder, FIG. 12(c) is a perspective view showing a compactdisc holder that is housing a compact disc.

FIG. 13 is a section view taken along the line D-D of FIG. 12(b).

FIG. 14 is a central longitudinal section in FIG. 12 (c).

FIG. 15 is a cross sectional view of the compact disc holder accordingto the third embodiment of the present invention showing the compactdisc holders that are connecting plural numbers mount to a ferromagneticarticle.

FIG. 16(a), FIG. 16(b), FIG. 16(c) are perspective views to explain thecompact disc holder according to the fifth embodiment of the presentinvention, FIG. 16(a) is a perspective view showing a compact discholder, FIG. 16(b) is a perspective view showing a compact disc holderthat is holding a compact disc, FIG. 16(c) is a perspective view showinga compact disc holder that is storing a compact disc.

FIG. 17 is a section view taken along the line E-E of FIG. 16 (a).

FIG. 18(a), FIG. 18(b), FIG. 18 (c) are section views to explain thecompact disc holder that is storing a compact disc of the fifthembodiment of the present invention, FIG. 18 (a) is a longitudinalsection of FIG. 16 (c), FIG. 18 (b) is a sectional view of showing thecompact disc holders that are connecting a lot of and mount to aferromagnetic article.

FIG. 19(a), FIG. 19(b), FIG. 19(c) are perspective view to explain thecompact disc holder according to the sixth embodiment of the presentinvention, FIG. 19(a) is a perspective view showing a compact disc, FIG.19(b) is a perspective view showing a compact disc holder, FIG. 19(c) isa perspective view showing a compact disc holder that is storing acompact disc.

FIG. 20 is a section view taken along the line F-F of FIG. 19 (b).

FIG. 21 is a central longitudinal section view of FIG. 19 (c).

FIG. 22 is a longitudinal section to explain the connected pluralcompact disc holder of the sixth embodiment of the present inventionthat are mounting to a ferromagnetic article.

FIG. 23 is a perspective view showing disc holder of a transformation ofaccording to the sixth embodiment of the present invention.

FIG. 24 is a cross sectional view taken along the line G-G of FIG. 23.

FIG. 25 is a perspective view showing the seventh embodiment of thepresent invention.

FIG. 26 is a cross sectional view taken along the line H-H of FIG. 25.

FIG. 27 is cross sectional view showing a magnet member of the seventhembodiment, FIG. 27(a) is a cross sectional view taken along the lineJ-J of FIG. 26, FIG. 27(b) is a cross sectional view taken along theline K-K of FIG. 27(a).

FIG. 28 is a cross sectional view showing connected plural compact discholders of the seventh embodiment of the present invention that aremounting to a ferromagnetic article.

FIG. 29 is a front elevation view showing an outline of a general ideaof external leakage of magnetic flux when mount a compact disc in thestate connecting plural compact disc holders of the second embodiment ofthe present invention.

FIG. 30 is a front elevation view showing an outline of a general ideaof the external leakage of magnetic flux when mount the compact discholder of the second embodiment of the present invention in the stateconnecting plural compact disc holders to a ferromagnetic article.

FIG. 31 is a front elevation view showing an outline of a general ideaof the fifteenth embodiment of the present invention.

FIG. 32 is a front elevation view showing the thirteenth embodiment ofthe present invention.

FIG. 33 is a front elevation view showing an embodiment comprising thethirteenth and fifteenth embodiment of the present invention.

FIG. 34(a) is a front elevation view showing one example of the magneticpattern that face multi poles magnetized type of both side and stored acompact disc with a couple of compact disc holders and FIG. 34 (b) isthe right side view of the compact disc holder.

FIG. 35 is a front elevation view showing an outline of a general ideaof external leakage of magnetic flux from the both ends when the compactdisc holder of the present invention with a magnet member having thateach side magnetized in thickness direction as shown in FIG. 37 that areconnecting a lot of.

FIG. 36 is a front elevation view showing an outline of a general ideaof a magnetic closed circuit of the sixteenth embodiment of the presentinvention.

FIG. 37(a) is a front elevation view showing one example of face multipoles magnetized pattern on both side (2 poles) in the concentric circlemagnetic pole pattern, FIG. 37(b) is a left side elevation view showingof the FIG. 37(a) example, FIG. 37(c) is aright side elevation viewshowing of the FIG. 37(a) example.

FIG. 38(a) is a front elevation view showing another example of a facemulti poles magnetized type on both side that a circle divide in to thefour magnetic poles arc-shaped, FIG. 38(b) is a left side elevation viewshowing of the FIG. 38(a) example, FIG. 38(c) is a right side elevationview showing of the FIG. 38(a).

FIG. 39 (a) is a front elevation view showing an example of facemagnetized type on both side of the present invention, FIG. 39(b) is aleft side elevation view showing of the FIG. 39(a) example, FIG. 39(c)is a right side elevation view showing of the FIG. 39(a).

THE BEST MODE OF THE INVENTION

The present invention is to hold a compact disc by compact disc holderusing a magnet member, and to connect compact disc holders by magneticforce of each magnet member, and it will be explain based on followingembodiment more.

FIG. 1 is the first example of the present invention. As for the compactdisc holder 1 in this example, as shown in FIG. 1 (a) and FIG. 1 (b),magnet member 2 constitutes one piece of article. In central part of themagnet member 2, holding part 3 is formed to insert through central hole6 of a compact disc 5, and, in backward of it a sidewall part 4 thatcovers central part of compact disc 5 is formed.

Moreover, the holding part 3 and the sidewall part 4 are illustrated asif like column in these drawings, but is good with arbitrary shape suchas a polygon or an oval. A magnetic polarity of magnet member 2 to bedifferent in tip face 3 a of holding part 3 from in outside 4 a of aboveside wall part 4, and magnetic attraction of each to ferromagneticarticle is enabled.

If, curve part 4 b were formed in outside 4 a of sidewall part 4, it iseasy to operation of its rotation as to mention later.

FIG. 2(a), FIG. 2(b) show using example of the first example of thepresent invention. As showing in FIG. 2(a), in the state that holdingpart 3 of magnet member 2 insert through a central hole 6 of the compactdisc 5, and adsorb the tip face 3 a of the holding part 3 to a positionB0 of ferromagnetic article S1 such as an iron shelf by magneticattraction, as showing in the FIG. 2(b), the compact disc 5 is heldbetween side wall part 4 of magnet member 2 and ferromagnetic articleS1.

FIG. 3(a) and FIG. 3(b) show the second example of the presentinvention. In this example, a ferromagnetic article that adsorbs magnetmember 2 that is made from like the first example, the compact discholder 21 comprises two pieces of magnet member 2 and magnet member 22,the magnet member 22 is formed as same shape as the magnet member 2 witha holding part 23 and a sidewall part 24 that they are magnetized indifferent magnetic pole from that of the holding part 3 and the sidewallpart 4, as shown in FIG. 3(a) the holding part 3 of the magnet member 2and the holding part 23 of the magnet member 22 insert through centralhole 6 of a compact disc 5, and mount the compact disc 5 by magneticattraction.

Moreover, above holding part 3, 23 is slightly bigger than thickness ofcompact disc 5 in total height is desirable for hold space, and theheight seems to be not necessary always equal the example, it mayconcentrate on only one side.

And it can install a compact disc to an arbitrary place on ferromagneticarticle S2 such as an iron shelf adsorb by magnetic attraction in abovestate in a sidewall part in one magnetic substance (cf. C-C section ofFIG. 3(b) in adsorption position C0).

Moreover, if made plural units that are holding a compact disc 5 betweenthe magnet member 2 and 22 of the example compact disc holder 21, pluralcompact disc holders can adsorb to sidewall part of the other magnetmember sequentially in order, as showing in FIG. 3(c), it can installthe plural number connected compact discs 5. In this case an installingplace is arbitrary and is useful in holding space to be able to useuseless space.

Furthermore, magnetic attraction force acts even if open between compactdisc holders to look for the desired compact disc from connected pluralcompact discs as shown in FIG. 4, and it is convenient because ofrestoring to an original connection state if remove opening force.

Moreover, sidewall part 4 of magnet member 2 can operate in the examplemore smoothly when opened between the compact discs mentioned above socurve part 4 b is formed that could pivot a magnet member itself.

In this example, when plural compact discs are connected, as shown inFIG. 5 it can store a connection state itself so it is possible to storethem by mounting surface without a ferromagnetic article in around.

FIG. 6(a) and FIG. 6(b) show the third example of the present invention.In this example it is similar to the second example as to hold a compactdisc between magnet members, but differs in a point to use single typemagnet member.

As shown in FIG. 6(a), a compact disc holder 31 is formed single magnetmember 32, and right holding part 38 and left holding part 39 thatinsert to a central hole of a compact disc are disposed each side incentral part of both sides of a disc like a wall part 37. Total heightof both the right holding part 38 and the left holding part 39 isslightly bigger than thickness of a compact disc, though each height ofthem is equal in this example. And each end face 38 a of the rightholding part 38 and end face 39 a of the left holding part 39 ismagnetized in different magnetic polarity.

As shown in FIG. 6(b), to hold a compact disc, in the state that insertthe right holding part 38 of the compact disc holder through centralhole 6 of compact disc 5, and adsorb left holding part 39′ of theanother compact disc holder 31′ to it.

And as shown in FIG. 6(c) the compact disc holder 31 can connect pluralcompact discs as same operation as mentioned above and adsorb them to aferromagnetic article S3 by magnetic attraction and can hold them.

FIG. 7(a) and FIG. 7(b) show transformation of the third example of thepresent invention.

A compact disc holder of the third example of the present invention issymmetric, so a look is good, on the other hand because difference ofpolarity in both ends aspect is incomprehensible, discloses thestructure that shape identification is easy to recognize in atransformation.

A compact disc holder 41 comprises one piece of magnet member 42, andholding part 43 is formed to slightly bigger than thickness of a compactdisc in central part of one side of sidewall part 44, as shown in FIG. 7(a) and magnetized to different the magnetic polarity of the tip face ofa holding part from a sidewall outside. (Therefore constitution of thecompact disc holder of the third example of the present invention isbasically same as the compact disc holder 1 of the first example of thepresent invention). According to the compact disc holder 41, holdingoperation of a compact disc becomes simple because of being able todistinguish a difference of polarity by a difference of shape. And itcan hold after plural compact discs connected and adsorb toferromagnetic article S4 as shown in FIG. 7(b).

Moreover, for the shape that it is easy to distinguish, holding part 53of a compact disc holder 51 forms wider than said examples of thetransformation and makes depression 53 a in an opposite side of theholding part 53 as shown in FIG. 8, and forms convex 67 such as a sphereon one side of a compact disc holder 61 and concave 68 in an oppositeside as shown in FIG. 9, and may adopt appropriate structure.

The each compact disc holder holds a compact disc between magneticmembers in the first example and the second example and thetransformation of the third example, but one member may merely form fromferromagnetic materials as shows in FIG. 10(a) and FIG. 10(b).

A compact disc holder 71 as shown in FIG. 10(a) comprises of magnetmember 72 with wider shape holding part 73 than that of thetransformation of the second example and wall member 77 of ferromagneticarticle that is formed from like a steel plate. FIG. 10(b) shows usingwall member 78 of the ferromagnetic article that is formed from steelplate to the same shape of the compact disc holder 51 shown in FIG. 8.In these drawings reference numeral 5 is a compact disc.

Moreover, in said each example and the transformation explanation isdone about a compact disc in a bare state, but it can similarly carryout, even if compact disc is stored in a protection housing cover 7 asshown in FIG. 11. This drawing shows the state that is holding compactdisc 5 between magnet material 2 and 22 of the second example.

In the present invention it is possible to hold a compact disc beside astructure to use a magnet member directly as explained said, and it willbe explained with following example.

From FIG. 12 to through FIG. 15 shows the fourth example of the presentinvention. A compact disc holder 101 is used for this example,comprising a housing cover 102 that stores compact disc 5 and magneticmember 103 in it.

The housing cover 102 is made from a transparent resin sheet into a bagwith back side 104 and front side 105, and is formed a storing region106 of compact disc 5 as shown in FIG. 12(b) and FIG. 13 that is thetaken along the line D-D of FIG. 12(b), and a magnet member 103 is set,in the condition that central hole 6 of the compact disc 5 as shown inFIG. 12(a) is able to insert into internal central part in this backside 104, that is covered with sheet member 109 on both sides and at itsaround is adhered by melting adhesion.

Moreover, a setting structure of magnet member 103 is good by anappropriate method except this example. Furthermore, flap part 107 isformed in the upper part of backside 104, and possess the upper part offront side 105, and stopping band 108 is installed.

And storing of above compact disc 5 completes after it is posted at anappointed position of above storing region 106 by inserting above flappart 107 into above strip 108 (cf. FIG. 12 (c) and FIG. 14).

Because compact disc holder 101 are possible to adsorb by magneticattraction with a ferromagnetic material and other compact disc holder101 as shown in FIG. 15, the compact disc holder 101 that is storingcompact disc 5 and can mount to ferromagnetic article S4 in the statethat connecting the plural compact disc holders 101.

From FIG. 16 through FIG. 18 shows the fifth example of the presentinvention. A compact disc holder 111 comprising a housing cover 112 thatcan store a compact disc and two magnet members 113 a, 113 b.

The housing cover 112 is made from a transparent resin sheet into a bagwith back side 114 and front side 115, and is formed a storing region116 to store a compact disc 5, and internal central part in this backside 114 a magnet member 113 a is installed to insert central hole 6 ofthe compact disc 5, and a flap part 117 is formed in the upper part ofback side 114, and a magnet member 113 b is installed at the upper endpart of the back side 114 to be able to adsorb with magnet member 113 aby magnetic attraction. Sheet members 119, 119 that cover and mountmagnet member 113 a and 113 b by melting adhesion are installed outsideof backside 114 in this example as shows in FIG. 17. But the mountingmethod of the mount magnet member 113 a and 113 b is not limited to theabove one and may adopt appropriate structure.

Moreover, notch part 115 a is formed so that the above magnet member 113a part exposes out in the upper part of above front side 115.

And storing of a compact disc completes by adsorbing the magnet member113 b that is installed by bending above flap part 117 downward toanother magnet member 113 a that is installed at one side in the statethat compact disc 5 is stored at an appointed position as shown in FIG.16 (b). (Cf. FIG. 16 (c) and FIG. 18 (a)). As shown in FIG. 16 (a) andFIG. 17, if made a dent 114 a it is easy to bend above flap part 117 andis convenient.

In said state that the compact disc holder 111 is storing a compact discsimilar to the fourth example, it is enabled to connect with the othercompact disc holders 111 and adsorption by magnetic attraction toferromagnetic article S5 as shown in FIG. 18 (b). In this example,compare with the fourth example there is advantageous storing a compactdisc is easy.

From FIG. 19 through FIG. 22 show the sixth example of the presentinvention. A compact disc holder 121 of the present invention outlinecomprises housing cover 122 and magnet member 123, and is different fromsaid example of the fourth and the fifth in the point where aninstallation position of the magnet member 123 comes off from thehousing cover 122 as shown in FIG. 19 (b) and FIG. 20 that is the crosssection taken along the line F-F of FIG. 19 (b).

Above housing cover 122 is formed a storing region 126 of a compact discbetween back side 124 and front side 125, and flap part 127 is installedin the upper part of the back side 124 by melting adhesion, And astopping band 128 is installed by melting adhesion in the upper part ofthe front side 125 which is inserted the flap part 127 to stop it.

The magnet member 123 is mounted in the upper part of backside 124 byinstalling between the upper part of backside 124 and the flap part 127.On that occasion so that magnet member 123 is located centrally as shownin FIGS. 19 (b) and (c), in this storing space may install unevenness tomaximize central storing space and to definite a putting position forthe storing compact disc that does not illustrate. Moreover, thicknessof the magnet member 123 is set top face position of the flap 127 whenhousing the following compact disc 5 and covering up the magnet member123 does not become low from the top face of the stopping band 128.

In this state the compact disc 5 that is shown in FIG. 19 (a) isinserted in the storing region 126 that is shown in FIG. 19 (b) of thehousing cover 122, and it is stored in the compact disc holder 121 bythe flap part 127 being inserted in stopping band 128 (cf. FIG. 19(c)and FIG. 21).

And a lot of the compact disc holders 121 are connected with magneticattraction force of their each magnet member 123 like as shown in FIG.22, and they are mounted by magnetic attraction to ferromagnetic articleS6.

The compact disc holders 121 can open widely when one look for a desiredcompact disc so that a position of the magnet member 123 is separatedfrom the storing region 126 in this example, and there are advantages inthat it is easy to watch it.

Furthermore, it becomes more easy to open more if install the magnetmember 123 on the top of extension region 129 of narrow widths it seemsto be the transformation of this example as shown in FIG. 23 and FIG. 24that are the cross section taken along the line G-G of FIG. 23.

A projection 130 is to project a magnet and to adsorb to other compactdisc holder easily by magnetic attraction, and can apply it to eachexample shown in FIG. 19 to FIG. 22.

FIG. 25 through FIG. 28 shows the seventh example of the presentinvention.

A compact disc holder 131 comprises from housing cover 132 storing ancompact disc in and magnet member 133 and connecting member 134; and anextension region 129 in this example made from the other member that isdifferent from said extension region 129 (cf. FIG. 23) in thetransformation of the sixth example as shown in FIG. 25 and FIG. 26 isthe cross section taken along the line H-H of FIG. 25.

A hole 145 is made at the upper part of above housing cover 132, and aconnecting member 134 that is made from resin fiber to a string shapeand is pierced through the hole 145. The connecting member 134 is formedto about circle, and an end of it is inserted in a magnet cover 135 thatis molded to rather thin thickness from like resin in the magnet member133, and it is hung to the projection 136 as shown in FIG. 27(a) that iscross section taken along the line J-J of FIG. 26 and in FIG. 27(b) thatis cross section taken along the line K-K of FIG. 27(a), and is stoppingthrough a magnet body 137 by mounting a cover board 138 compulsively.

Moreover, about installation structure of above connecting member 134and the magnet member 133 and structure of the magnet member 133 theymay be carry it out by appropriate structure without limiting to aboveexamples.

The compact disc holder 131 that comprises as above, a connection withother plural number compact disc holders 131 and mount to ferromagneticarticle S7 are enabled by magnetic adsorption of magnet member 133 asshown in FIG. 28. According to this example, when one looks for adesired compact disc one can open greatly, and can watch it easily evenif one turn it because it is all right.

The following examples show about product methods of the compact discholders and various its performances.

EXAMPLE 8

This example was measured magnetic attraction force of a compact discholder.

A compact disc holder used for this measurement with shape shown in FIG.1, that was a diameter of sidewall part 4 of 25 mm, a diameter ofholding part 3 of 14.8 mm and thickness of it of 2.1 mm (one piece), andwas molded by well known ejection molding from marketing a bond magnet(a plastic magnet) pellet made up raw materials for plastic magnet likeanisotropy strontium ferrite powder and polyamide resin (magneticcharacteristic Br: 2580G, bHc:23600e, iHc:28000e, Bhmax:1.6MG0e) (saysample 1 in following).

And a subsidiary magnet that assists an attraction force wascylindrical, and it was a diameter of 14.8 mm, thickness of 7.8 mm, andit was molded as the compact disc holder was mentioned above. As formagnetization of above both materials were magnetized both side in themagnetic direction field at the same time of magnetic field molding.(Molding of a counterpart as a pair of compact disc holder reversed adirection of a magnetic field and molded it.)

The compact disc holder and the subsidiary magnet which were produced byabove example 8 when adhered to a steel plate (thickness 1.5 mm) asadsorbent, attraction force was 85 g only in the case of the compactdisc holder and it was 170 g when adsorbed the compact disc holder bythe subsidiary magnet 139 to assist magnetic adsorption as shows in FIG.32, and the former one felt even a hand sense with lack of attractionforce, but, as for the latter one, the enough touch was gotten.

If attraction force in case of one pair was enough, there are noproblems because of the attraction force was an increase tendency by aconnecting more than it.

EXAMPLE 9

This example was measured external leakage magnetic flux of compact discholders.

Compact disc holder used for this measurement were above sample 1 andsample 2 that was molded by well known ejection molding from marketing abond magnet (a plastic magnet) pellet (magnetic characteristic Br:4600G, bHc:43000e, iHc:140000e, Bhmax:5MG0e) like isotropyneodymium/iron/boron bond magnet and formed to the same shape and sizeof the sample 1 and magnetized it by loading magnetic field of 250000efrom both direction of top and bottom side.

And measurement of surface leakage magnetic flux density was done byusing a gauss meter at the end center of 24 pieces of the compact discholders of states that were connected of each sample. It resulted in thesample 1 of anisotropy strontium ferrite bond magnet was weak with 872Gcompare with 1950G in the case of sample 2 of isotropyneodymium/iron/boron bond magnet.

Therefore, it can reduce possibility of a magnetic obstacle to floppydiscs if a ferrite bond magnet used for the compact disc holder and issuitable because this magnet compare with a magnet of the other kindeven complicated shape can mold easily in magnetic field and wasinexpensive.

EXAMPLE 10

In this example leakage magnetic flux density from a support base wasmeasured when the support base was used in the state that used thecompact disc holders that were magnetized on both sides. The compactdisc holders of above example 1 were used in this measurement.

The measurement result of surface magnetic flux density of the lastholder central part with the state that connected 24 pieces of compactdisc holders adhered to an iron plate of thickness 1.5 mm was 920G. Onthe other hand, when making a magnetic closed circuit with the statethat connected 24 pieces of the compact disc holders adhered between asupport member 140 (made from iron plate of thickness 1.5 mm, width 50mm) and coupling iron plate of thickness 1.5 mm, and measured leakageflux density in a back center of the iron plate by a gauss meter wasabout 2G, from its result leakage magnetic flux become a lower than thecase there were no coupling iron plate.

EXAMPLE 11

In this example leakage flux density from a support base was measuredwhen the support base was used in the state that used the compact discholders that were magnetized in two magnetic poles on both sides. Thecompact disc holders used in this measurement were formed as the example8, after reduced magnetic force by well known magnetic reverse loadmethod and same as the compact disc holder of example 8 as shown in FIG.34(a) and (b), and two magnetizing yokes of a diameter of 10 mm ofcenter pole that had an North magnetic pole up side and a South magneticpole down side closely connected to the compact disc holder both faces aconcentric circle in, and loaded a pulse direct current of 1500A bywell-known magnetizing electric supply equipment.

The measurement result of surface flux density of the central lastholder part with the state that connected 24 pieces of compact discholders adhered to an iron plate of thickness 1.5 mm was 870G. On theother hand, when making a magnetic closed circuit with the state thatconnected 24 pieces of the compact disc holder adhered to a supportmember 140 (made from iron plate of thickness 1.5 mm, width 50 mm) andadhered the coupling iron plate of thickness 1.5 mm to the last compactdisc holder as shown in FIG. 36, and measured leakage flux density in aback center of the iron plate by a gauss meter was about 0G, from theseresult a leakage flux did not recognize.

Industrial Availability

The present invention can mount compact disc to a compact disc holderusing magnet member, so that can connect plural compact discs bymagnetic adsorption it is simple structure and high serviceability andexcellent economy, and because the compact disc holder can mount to anarbitrary place in a ferromagnetic article such as an iron shelf, it canutilize useless space and can save the installation space.

Furthermore, according to this invention, if on the occasion of use incases of work of a personal computer with possibility to approach afloppy disc, you can use a bond magnet of low magnetic force bycombination of an adsorption assistance magnet and can prevent leakagemagnetic flux by using the support base of compact disc holder to form amagnetic closed circuit.

1. A compact disc holder comprising a holding part which is made frommagnetic material and tip side of said holding part insert through incentral hole of a compact disc directly or in a cover member indirectly,and sidewall part which cover the side of a compact disc and whichconstitutes magnetic attraction ability outside central part of backsideof an aspect to face with a compact disc, and said holding part mountinga compact disc and its tip side absorbs by magnetic attraction abilityto a ferromagnetic article.
 2. A compact disc holder as in claim 1wherein said sidewall part is formed to cover one central part side in acompact disc and said holding part are formed to one body from magneticmaterial, and tip face of the holding part and outside face of thesidewall part are magnetized in different magnetic polarity.
 3. Acompact disc holder as in claim 2 wherein an wall member fromferromagnetic material is provided of covering other side central partof a compact disc that said side wall part is covering.
 4. A compactdisc holder as in claim 3 wherein said wall member is formed with amagnet, and the magnetic attraction side of the tip face and the otherside of the holding part are magnetized in the different magnetic pole.5. A compact disc holder as in claim 4 wherein said wall member is madefrom same material of the compact disc holder in claim
 2. 6. A compactdisc holder according to any one of claims 3 to 5 wherein outside faceof said sidewall part or outside surface of said wall member is formedabout arc curve, so as to pivotable when adsorb it by magnetic force atleast to flat surface of ferromagnetic material.
 7. A compact discholder as in claim 1 wherein comprising a cover that accommodates acompact disc, and said compact disc holder which is forming said sidewall part and said holding part which is made from magnetic material andis mounted central part of said cover, and adsorb to ferromagneticmaterial by magnetic attract force include with said cover.
 8. A compactdisc holder as in claim 1 wherein comprising said housing that stores acompact disc, and magnet member which is connected by coupling material,and adsorb to ferromagnetic article by magnetic attract force of saidholding part through said cover and said coupling material.
 9. A compactdisc holder as in claim 7 or 8, wherein said cover is formed from a softtransparent material.
 10. A compact disc holder according to claim 6wherein said ferromagnetic material or said compact disc holder eithersubsidiary magnet adsorb to it or put between plural said compact discholder.
 11. A compact disc holder according to claim 1 wherein saidmagnetic material comprises ferrite-bond magnet of comparatively weakmagnetic force.
 12. A support base comprising ferromagnetic materialthat by magnetic attraction adsorbs and holds to its inside said acompact disc holder comprising a holding part which is made frommagnetic material and tip side of said holding part insert through incentral hole of a compact disc directly or in a cover member indirectlyand sidewall part which cover the side of a compact disc and whichconstitutes magnetic attraction ability outside central part of backsideof an aspect to face with a compact disc and said holding part mountinga compact disc and its tip side absorbs by magnetic attraction abilityto a ferromagnetic article the support base comprising the magneticmaterial that one side at north magnetic pole and other side at southmagnetic pole, and adsorb ferromagnetic connecting material between lastend of said compact disc holder and bottom of it and form a magneticclosed circuit, and prevent the magnetic flux external leakages.
 13. Asupport base in claim12 wherein both side of said magnetic material aremagnetized to multi magnetic pole, and by magnetic attraction saidsupport base adsorb said compact disc holder that having said magneticmaterial, and adsorb ferromagnetic connecting material to last end ofcompact disc holder and form a magnetic closed circuit, and preventmagnetic flux external leakage.